Genomics-assisted breeding for pigeonpea improvement

Area of Science:

• Agricultural Science
• Plant Breeding
• Genomics

Background:

• Pigeonpea is a vital, nutritious, and stress-tolerant legume crop grown in tropical and subtropical regions.
• Despite decades of breeding, on-farm pigeonpea yields remain below their potential.
• Hybrid technology has shown promise for yield enhancement in pigeonpea.

Purpose of the Study:

• To review advances in pigeonpea genomics, breeding, and seed delivery systems.
• To identify strategies for improving breeding efficiency and achieving higher sustainable yields.
• To explore the integration of new genomics technologies into breeding programs.

Main Methods:

• Review of recent genomic resources, including genome-wide markers and sequencing data.
• Analysis of marker/gene-trait associations for improving yield and market traits.
• Discussion of new breeding tools such as genomic selection and speed breeding.

Main Results:

• Significant progress in generating genomic resources for pigeonpea.
• Application of marker/gene-trait associations in breeding programs.
• Potential for improved genetic gains through genomic selection and speed breeding.

Conclusions:

• Integrating advanced genomics with breeding is essential for rapid yield improvements.
• Systematic selection and utilization of genetic resources are key for adaptation traits.
• Addressing seed industry challenges is critical for delivering new cultivars to farmers.